Cognomen Simianakis (Simianakis 
) , around the globe, is a very rare last name. The family name Simianakis is habitual in Greece, where it is a very rare surname, Australia, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Greece, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Simianakis | Greece, Canada, United States, Australia |